ORTO

Sound attenuating transfer unit

For the transfer of air through a wall
Fits in a rectangular wall opening
Simple to install
Designed for installation above a door
Accessories:
- VGR telescopic wall sleeve
Standard colour White RAL 9003
- 5 alternative standard colours
- Other colours upon request

Calculate with your requirements

AIR FLOW - PRESSURE DROP - Rw
ORTO Size	Hole in wall (mm)	10 Pa		15 Pa		20 Pa		Rw=Dn,ew (dB)
ORTO Size	Hole in wall (mm)	l/s	m3/h	l/s	m3/h	l/s	m3/h	Rw=Dn,ew (dB)
300	300x50	27	97	32	115	37	133	46
500	500x50	43	155	52	187	61	220	43
700	700x50	62	223	74	266	89	320	40
800	800x50	74	266	88	317	105	378	40
The data applies to installation in a 100 mm thick studded wall with a 10 m² transmission area. One transfer diffuser on each side of the wall.

Nordic Swan listed

The product is listed in the database for building products that can be used in Nordic Swan Ecolabelled buildings.

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Include Accessory documents

Document	Article	Document type	Date
Sound-attenuating transfer unit (pdf 484.33kB)	ORTOa	Technical catalogue	20/01/2021
Installation, commissioning, maintenance (pdf 295.71kB)	ORTOa	IOM Manual	20/01/2021
Overview - Air diffusers (pdf 3.34MB)	Air diffusers	Brochure	12/07/2022
Commissioning guide - Air diffusers, VAV/CAV- & Commissioning dampers (pdf 7.75MB)	Air diffusers, VAV/CAV- & Commissioning dampers	IOM Manual	19/08/2024
Product description - Air diffusers & dampers (pdf 249.19kB)	Air diffusers & dampers	IOM Manual	19/10/2023
Nano certificate (pdf 71.51kB)	Air diffusers	Quality	03/10/2023
Decoline - Unique opportunities with design in focus (pdf 3.34MB)	CDR, CIRCO, KITE Ceiling, ORTO	Brochure	20/10/2021

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